This week on TechRadar

iPhone 5 is going to be completely redesigned, invisible tanks are heading to the battlefields and the BlackBerry Storm 3 isn't so invisible now that images have leaked. These are just some of the top stories this week on TechRadar.

Clues about Apple's forthcoming iPhone 5 have been leaked online, claiming that the new device will have a new powerful CPU and feature another redesign.

Engadget is quoting 'extremely accurate' sources in saying that not only will the new device land in the summer (in line with every iPhone launch for the past few years) but Apple will be looking to keep the iPhone 5 at the sharp end of mobile technology.

To that end, we can expect to see Apple's new A5 CPU, an ARM Cortex A9 chipset, which will be multi-core, enabling much better battery life and even more power from the fruity phone.

Defence contractor BAE Systems has hatched a plan to cover British Army tanks with an E-Ink surface to make them practically invisible on the battlefield.

The high-tech plan which effectively weaponises the tech behind our beloved Kindle reader uses cameras to take pictures of the surroundings and project the images onto the surface of the vehicle.

The camera would continually snap images meaning that the tank's surface would be constantly refreshing making it practically untraceable to enemies and freedom haters across the globe. Awesome stuff, huh?

Apple is rumoured to be preparing a launch event for 9 February to unveil the iPad 2, according to speculation kicked off by a leaked image of an iPad 2 containing exactly that date on the Home screen.

Keen-eyed Apple-watching scouts over at 9to5Mac and Neowin suggest that the leaked image which shows the 9 February date on what purports to be a shot of the iPad 2 is good enough evidence to peg that date as the officially planned date for the reveal.

The internet loves Apple and it loves ill-founded speculation, so it's hardly surprising that iPad 2 rumours were flying before the first iPad even reached the UK.

With only weeks to go before its expected unveiling the iPad 2 release date, specs and price are still closely guarded secrets, but that doesn't mean there aren't some juicy rumours, inspired guesses and possibly even Apple leaks to consider.

Reports suggest Apple is also expecting massive demand for the new device and has ordered six million units per month.

If you're one of the many thousands of iOS device owners who's become thoroughly addicted to bombarding kleptomaniac pigs with psychotic birds, it means two things.

First, you're a person of good taste; Angry Birds is one of the finest iOS games around. Secondly, it suggests you're a fan of artillery games and physics-based puzzlers, given that Angry Birds is a hybrid of the two. (Either that or you just have a thing against cartoon pigs, or can't stand to see any kind of injustice when it comes to our avian chums, in which case you should probably lay off the games for a bit and go and have a lie down.)

Luckily, when you've exhausted Angry Birds by three-starring every level, there are similar games on the App Store, along with titles more squarely positioned as artillery shooters or precision physics puzzlers with a decidedly destructive bent.

Bulldozer isn't due out until later this year but we can now give you the beginnings of an answer: yes, no and maybe.

If that sounds like a non-answer, bear with us. Bulldozer promises to be the most revolutionary CPU architecture in living memory. Its design fundamentally challenges the very concept of a CPU core. Even with full architectural disclosure, estimating performance is tricky, bordering on impossible. However, intentionally or otherwise, AMD has let slip a few metrics which can help piece together a picture of performance.

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